Using Tens Frames to Add — Let's Practise

Using Tens Frames to Add — Let's Practise exercise

• How do we add with tens frames?

  Hints

  Addend is another word for a number in an addition equation.

  When you add two or more addends together, you get the sum or answer!

  When solving word problems, you always want to rewrite the information using numbers and maths symbols, such as + and =.

  This type of written phrase is called an equation.

  Solution

  Step 1: Write down the equation.

  Step 2: Fill in the tens frame with the smaller addend.

  Step 3: Start from the larger addend and then count up using the tens frame.

• Help Mr. Squeaks solve the equation.

  Hints

  We fill in the tens frame with the smaller addend.

  The addends for this equation are 27 and 8.

  If there is not a tens frame given, you can make your own.

  Draw 8 circles or dots on the paper.

  Count up from the larger addend using the dots you've just drawn!

  Solution

  Mr. Squeaks should draw a tens frame with 8 circles.

  Starting from 27, Mr. Squeaks should count the circles in the tens frame.

  So, 27 + 8 = 35.

• Add using the tens frames.

  Hints

  First, identify the larger addend.

  Count up from the larger addend using the tens frames shown next to the equation.

  Let's look at problem 2.

  58 + 17 = ?

  58 is the larger addend. Count up from 58 using these tens frames.

  Solution

  42 + 16 = 58

  58 + 17 = 75

  39 + 15 = 54

  61 + 11 = 72

• Solve the equations.

  Hints

  For these problems, you should make your own tens frames.

  Start by drawing a rectangle with 10 boxes inside.

  Next, colour the same number of boxes as the smaller addend in the equation.

  If you need to colour in more boxes, just draw another tens frame!

  Here is a tens frame with 17 spots. This will help you to solve 23 + 17.

  Here is a tens frame with 12 spots. This will help you to solve 56 + 12.

  Here is a tens frame with 18 spots. This will help you to solve 74 + 18.

  Here is a tens frame with 17 spots. This will help you to solve 67 + 20.

  Solution

  23 + 17 = 40

  56 +12 = 68

  74 + 18 = 92

  67 + 20 = 87

• Use the tens frames to solve the equation.

  Hints

  Start by identifying the larger addend, or number, in the equation.

  Count up the number of dots in the tens frames starting from the larger addend, 36.

  So, the first dot should be counted as 37.

  Solution

  36 + 13 = 49

  First, start with the larger addend, 36.

  Then, use the tens frames to add on 13.

  36 + 10 = 46. 46 + 3 = 49.

• Solve the word problem.

  Hints

  The question asks you to add the number of butterflies that Imani saw to the number of butterflies that Mr. Squeaks saw.

  Start by writing an addition equation that shows this.

  Your equation should look like this:

  37 + 19 = ?

  Use the tens frame to help solve the equation.

  Solution

  Imani and Mr. Squeaks saw 56 butterflies altogether.

  First, start with the larger addend, 37.

  Then, create two ten frames to add on 19. 37 + 10 = 47. 47 + 9 = 56.

  37 + 19 = 56